2015-07-30 8:45 GMT+08:00 YOSHIFUJI Hideaki
<[email protected]>:
>>> How about ignoring hop limit without message is configured value is
>>> larger than 255, BTW?
>>
>> Although set accept_ra_min_hop_limit great than 255 is meaningless, there
>> is also no need to check it since icmp6_hop_limit will not larger than 255.
>> so
>>
>> + if (in6_dev->cnf.accept_ra_min_hop_limit <= 255 &&
>> + in6_dev->cnf.accept_ra_min_hop_limit <=
>> ra_msg->icmph.icmp6_hop_limit )
>> in6_dev->cnf.hop_limit =
>> ra_msg->icmph.icmp6_hop_limit;
>>
>> is duplicated check. How do you think?
>
> How about checking in6_dev->cnf.accept_ra_min_hop_limit by outer if, then?
>
>
> if (in6_dev->cnf.accept_ra_min_hop_limit < 256 &&
> ra_msg->icmph.icmp6_hop_limit) {
> ...
> }
Then let's move all the if check outside, I will send a v4 patch for you review.
Thanks
Hangbin
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